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8#ifndef _SPU_CONTEXT_UTILS_H_
9#define _SPU_CONTEXT_UTILS_H_
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13
14typedef union {
15 unsigned long long ull;
16 unsigned int ui[2];
17} addr64;
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22typedef union {
23 unsigned int slot[4];
24 vector unsigned int v;
25} spu_reg128v;
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30struct dma_list_elem {
31 unsigned int size;
32 unsigned int ea_low;
33};
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38struct dma_list_elem dma_list[15] __attribute__ ((aligned(8)));
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44extern spu_reg128v regs_spill[NR_SPU_SPILL_REGS];
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49static struct spu_lscsa *dummy = (struct spu_lscsa *)0;
50#define LSCSA_BYTE_OFFSET(_field) \
51 ((char *)(&(dummy->_field)) - (char *)(&(dummy->gprs[0].slot[0])))
52#define LSCSA_QW_OFFSET(_field) (LSCSA_BYTE_OFFSET(_field) >> 4)
53
54static inline void set_event_mask(void)
55{
56 unsigned int event_mask = 0;
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63 spu_writech(SPU_WrEventMask, event_mask);
64}
65
66static inline void set_tag_mask(void)
67{
68 unsigned int tag_mask = 1;
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75 spu_writech(MFC_WrTagMask, tag_mask);
76}
77
78static inline void build_dma_list(addr64 lscsa_ea)
79{
80 unsigned int ea_low;
81 int i;
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88 ea_low = lscsa_ea.ui[1];
89 ea_low += LSCSA_BYTE_OFFSET(ls[16384]);
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91 for (i = 0; i < 15; i++, ea_low += 16384) {
92 dma_list[i].size = 16384;
93 dma_list[i].ea_low = ea_low;
94 }
95}
96
97static inline void enqueue_putllc(addr64 lscsa_ea)
98{
99 unsigned int ls = 0;
100 unsigned int size = 128;
101 unsigned int tag_id = 0;
102 unsigned int cmd = 0xB4;
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110 spu_writech(MFC_LSA, ls);
111 spu_writech(MFC_EAH, lscsa_ea.ui[0]);
112 spu_writech(MFC_EAL, lscsa_ea.ui[1]);
113 spu_writech(MFC_Size, size);
114 spu_writech(MFC_TagID, tag_id);
115 spu_writech(MFC_Cmd, cmd);
116}
117
118static inline void set_tag_update(void)
119{
120 unsigned int update_any = 1;
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126 spu_writech(MFC_WrTagUpdate, update_any);
127}
128
129static inline void read_tag_status(void)
130{
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135 spu_readch(MFC_RdTagStat);
136}
137
138static inline void read_llar_status(void)
139{
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144 spu_readch(MFC_RdAtomicStat);
145}
146
147#endif
148